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Finding the Fourth Proportional to 570,176.92, 786,840.78 and 328,369.24

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Solution

The fourth proportional to 570,176.92, 786,840.78 and 328,369.24 is: 453,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,176.92 : 786,840.78 = 328,369.24 : x
  2. Step 2: Convert to fraction form
    570,176.92/786,840.78 = 328,369.24/x
  3. Step 3: Cross multiply
    570,176.92x = 786,840.78 × 328,369.24
  4. Step 4: Simplify right side
    570,176.92x = 258,374,308,929.61
  5. Step 5: Solve for x
    x = 258,374,308,929.61/570,176.92
  6. Step 6: Final answer
    x = 453,147.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.